Very attractive mum cavorted with two Yankees (5)
I believe the answer is:
yummy
'very attractive' is the definition.
I can't tell whether this defines the answer.
'mum cavorted with two yankees' is the wordplay.
'two yankees' can mean two substitutions for 'yankee'.
'cavorted with' indicates an anagram (I've seen 'cavort' mean this).
'yankee' becomes 'Y' (phonetic alphabet: alpha, bravo, charlie etc.).
'yankee' becomes 'Y' (phonetic alphabet: alpha, bravo, charlie etc.).
'mum' with its letters mixed up with 'y' can make 'yumm'.
'yumm'+'y'='YUMMY'
Can you help me to learn more?
(Other definitions for yummy that I've seen before include "Luscious" , "Mmmmm!" , "That tastes good!" , "That's truly scrumptious!" , "Like delicious food" .)